I once boxed a 251-pound Tae-Kwon-Do guy, who, more importantly, was Polish, meaning strong as an ape and hard as a brick. He hopped in behind his jab and I stepped right to get off line as I threw a nothing jab, but, I kind of froze like a hipster at his own mugging and forgot to drag my lead foot off line, which had raised in a half-pivot.
I had nothing on this jab, only weighed 154 and was afraid the big fooker was going to step on my ankle and break it. But instead his chin ran into my fist. My arm almost broke above the elbow from the force of his charge, and he was out on the matt—KO’d by accident.
It was the half pivot that did it. This can be done as a standalone booby trap as you fade on an angle, but all you will score is the jab.
However, if you side step while he is coming straight in, with your rear hand high in guard and your glove in his face, or even the heel of your hand on his forehead, he will run into half of your body weight, some structure, which will permit his weight to do some damage to him.
What is more, you have now split his hands behind a lead foot pivot. If you have stopped him cold, you may now drop that lead heel and do a power pivot with the rear foot as you throw the classic cross, over his lead hand, right into the button or the temple.
Practice this extensively on the heavy bag. The floor mounted heavy bag and Thai bag are very good for this drill.
Remember, if you do not have a fade and slide jab it will be hard to set your man up for this vicious cutoff punch.
Practice this with a sparring partner and you will see that this places the advancing fighter perfectly in the counterpuncher's wheelhouse, which is the place where both hands can be used with power and the opponent's lead foot is in between the counterpuncher's feet, with the advancing fighter's lead foot preventing the rear hip from engaging rear hand punching power.